Paul Frank Little Boys' 5 Pack Headphones Socks 1: 98% Polyester/2% Spandex; Socks 2 to 3: 85% Polyester/13% Nylon/2% Spandex; Socks 4 to 5: 98% Polyester/2% Spandex Machine Wash 5 designs with Paul Frank graphics on every pair Ribbed cuffs enhance flexibility and ease of movement